Why is bash, when run by unshare, unable to fork any processes? [duplicate]
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unshare --pid /bin/bash - fork cannot allocate memory
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I am using Arch Linux, and trying to do some experiments about linux namespace. I use the following command but doesn't get bash to work.
xtricman⚓ArchVirtual⏺️~🤐unshare -muinpUC --propagation slave --setgroups deny /usr/bin/bash
Could not get property: Access denied
nobody⚓⏺️~🤐ls
bash: fork: Cannot allocate memory
nobody⚓⏺️~🤐
Then No external commands can be run by the shell, could anybody explain the reason to me?
linux namespaces
edited Nov 10 at 4:18
mpb
686811
asked Oct 23 at 6:44
神秘德里克
294211
marked as duplicate by Community♦ Nov 20 at 6:49
This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.
migrated from unix.stackexchange.com Oct 24 at 16:34
This question came from our site for users of Linux, FreeBSD and other Un*x-like operating systems.
add a comment |
up vote
1
down vote
favorite
This question already has an answer here:
unshare --pid /bin/bash - fork cannot allocate memory
2 answers
I am using Arch Linux, and trying to do some experiments about linux namespace. I use the following command but doesn't get bash to work.
xtricman⚓ArchVirtual⏺️~🤐unshare -muinpUC --propagation slave --setgroups deny /usr/bin/bash
Could not get property: Access denied
nobody⚓⏺️~🤐ls
bash: fork: Cannot allocate memory
nobody⚓⏺️~🤐
Then No external commands can be run by the shell, could anybody explain the reason to me?
linux namespaces
edited Nov 10 at 4:18
mpb
686811
asked Oct 23 at 6:44
神秘德里克
294211
marked as duplicate by Community♦ Nov 20 at 6:49
This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.
migrated from unix.stackexchange.com Oct 24 at 16:34
This question came from our site for users of Linux, FreeBSD and other Un*x-like operating systems.
The question title is contradicted by the body, which clearly shows the Bourne Again shell running, chained-to fromunshare.
– JdeBP
Oct 23 at 6:55
add a comment |
up vote
1
down vote
favorite
up vote
1
down vote
favorite
This question already has an answer here:
unshare --pid /bin/bash - fork cannot allocate memory
2 answers
I am using Arch Linux, and trying to do some experiments about linux namespace. I use the following command but doesn't get bash to work.
xtricman⚓ArchVirtual⏺️~🤐unshare -muinpUC --propagation slave --setgroups deny /usr/bin/bash
Could not get property: Access denied
nobody⚓⏺️~🤐ls
bash: fork: Cannot allocate memory
nobody⚓⏺️~🤐
Then No external commands can be run by the shell, could anybody explain the reason to me?
linux namespaces
edited Nov 10 at 4:18
mpb
686811
asked Oct 23 at 6:44
神秘德里克
294211
This question already has an answer here:
unshare --pid /bin/bash - fork cannot allocate memory
2 answers
I am using Arch Linux, and trying to do some experiments about linux namespace. I use the following command but doesn't get bash to work.
xtricman⚓ArchVirtual⏺️~🤐unshare -muinpUC --propagation slave --setgroups deny /usr/bin/bash
Could not get property: Access denied
nobody⚓⏺️~🤐ls
bash: fork: Cannot allocate memory
nobody⚓⏺️~🤐
Then No external commands can be run by the shell, could anybody explain the reason to me?
This question already has an answer here:
unshare --pid /bin/bash - fork cannot allocate memory
2 answers
linux namespaces
linux namespaces
edited Nov 10 at 4:18
mpb
686811
asked Oct 23 at 6:44
神秘德里克
294211
edited Nov 10 at 4:18
mpb
686811
asked Oct 23 at 6:44
神秘德里克
294211
edited Nov 10 at 4:18
mpb
686811
edited Nov 10 at 4:18
mpb
686811
edited Nov 10 at 4:18
mpb
686811
686811
asked Oct 23 at 6:44
神秘德里克
294211
asked Oct 23 at 6:44
神秘德里克
294211
asked Oct 23 at 6:44
神秘德里克
294211
294211
marked as duplicate by Community♦ Nov 20 at 6:49
This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.
migrated from unix.stackexchange.com Oct 24 at 16:34
This question came from our site for users of Linux, FreeBSD and other Un*x-like operating systems.
marked as duplicate by Community♦ Nov 20 at 6:49
This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.
migrated from unix.stackexchange.com Oct 24 at 16:34
This question came from our site for users of Linux, FreeBSD and other Un*x-like operating systems.
The question title is contradicted by the body, which clearly shows the Bourne Again shell running, chained-to fromunshare.
– JdeBP
Oct 23 at 6:55
add a comment |
The question title is contradicted by the body, which clearly shows the Bourne Again shell running, chained-to fromunshare.
– JdeBP
Oct 23 at 6:55
The question title is contradicted by the body, which clearly shows the Bourne Again shell running, chained-to from
unshare.– JdeBP
Oct 23 at 6:55
The question title is contradicted by the body, which clearly shows the Bourne Again shell running, chained-to from
unshare.– JdeBP
Oct 23 at 6:55
add a comment |
1 Answer
1
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votes
up vote
0
down vote
Perhaps you need run unshare with -f?
See: unshare --pid /bin/bash - fork cannot allocate memory
answered Nov 10 at 2:16
mpb
686811
add a comment |
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
0
down vote
Perhaps you need run unshare with -f?
See: unshare --pid /bin/bash - fork cannot allocate memory
answered Nov 10 at 2:16
mpb
686811
add a comment |
up vote
0
down vote
Perhaps you need run unshare with -f?
See: unshare --pid /bin/bash - fork cannot allocate memory
answered Nov 10 at 2:16
mpb
686811
add a comment |
up vote
0
down vote
up vote
0
down vote
Perhaps you need run unshare with -f?
See: unshare --pid /bin/bash - fork cannot allocate memory
answered Nov 10 at 2:16
mpb
686811
Perhaps you need run unshare with -f?
See: unshare --pid /bin/bash - fork cannot allocate memory
answered Nov 10 at 2:16
mpb
686811
answered Nov 10 at 2:16
mpb
686811
answered Nov 10 at 2:16
mpb
686811
answered Nov 10 at 2:16
mpb
686811
686811
add a comment |
add a comment |
The question title is contradicted by the body, which clearly shows the Bourne Again shell running, chained-to from
unshare.– JdeBP
Oct 23 at 6:55